335 results match your criteria: "King AbdulAziz University Jeddah[Affiliation]"

Perovskite solar cells are commonly employed in photovoltaic systems because of their special characteristics. Perovskite solar cells remain efficient, but lead-based absorbers are dangerous, restricting their manufacture. Therefore, studies in the field of perovskite materials are now focusing on investigating lead-free perovskites.

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Background: Chronic kidney disease (CKD) is a prevalent global health issue affecting millions of patients worldwide, impacting quality of life, impeding physical and psychological well-being, causing financial stress, and increasing mortality rates. This study aimed to highlight the prevalence of CKD and its associated risk factors across Saudi Arabia.

Method: This is a cross-sectional study conducted from 2015 to 2022, using data from 42 branches of a major network of diagnostic laboratories in Saudi Arabia, covering the country's 13 administrative areas.

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Luteolin is widely distributed phytochemical, a flavonoid, in kingdom plantae. Luteolin with potential antioxidant activity prevent ROS-induced damages and reduce oxidative stress which is mainly responsible in pathogenesis of many diseases. Several chemo preventive activities and therapeutic benefits are associated with luteolin.

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Background: The erythrocyte sedimentation rate (ESR) is a widely used haematological test that indirectly measures inflammation in the body. It is influenced by various factors, including age, sex, and physiological condition. Altitude is another critical factor due to its impact on red blood cell physiology and plasma protein composition.

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Article Synopsis
  • Hyperlipidemia is linked to poor diet and inactivity, but prebiotics and probiotics, like those found in mushrooms and kefir milk, could help address its effects.
  • A study tested dried powdered mushrooms (DPM) and kefir milk (KM) on hyperlipidemic rats, showing significant improvements in health markers such as body weight, blood glucose, and lipid profiles when DPM and KM were included in their diet.
  • The findings suggest that the combination of DPM and KM could serve as functional foods to reduce hyperlipidemia and enhance gut health, but further research on humans is necessary.
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A novel class of ethyl 2-aryl-3-ethoxy-5-methyl-3-oxido-2-thiazolo[2,3-][1,4,2]diazaphosphole-6-carboxylates (2a-j) were synthesized a one-pot, three-component method. This reaction utilized ethyl 2-amino-4-methylthiazole-5-carboxylate (1) with different aromatic aldehydes and ethyl dichlorophosphite in THF under ultrasonic irradiation, with triethylamine as an efficient catalyst at 50 °C. The reaction provided the desired products 2a-j in high yields within a short timeframe.

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  • The study focuses on primary lymphoid neoplasms in the urinary tract and male genital organs, which are rare and make up less than 5% of extranodal lymphomas.
  • Researchers analyzed cases diagnosed from 2005 to 2020, examining pathology slides from 11 patients, predominantly middle-aged, finding a female predominance in urinary bladder and ureter lymphomas.
  • The findings confirm that diffuse large B-cell lymphoma (DLBCL) is the most common subtype, but emphasize the importance of thorough classification and diagnosis using techniques like immunohistochemistry to accurately identify various lymphoma types.
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Introduction: Leadership style and employee behavior has long been a topic of interest in organizational research.

Objectives: To explore levels of despotic leadership, supervisor-employee value congruence, and organizational deviance among the studied nurses. Furthermore, to explore the connection between the three variables.

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Background: Extracellular vesicles (EVs) function as biomarkers and are crucial in cell communication and regulation, with therapeutic potential for intervertebral disc (IVD)-related low back pain (LBP). EV cargo is often affected by tissue health, which may affect the therapeutic potential. There is currently limited knowledge of how the cargo of IVD cell-derived EVs varies with tissue health and how differences in proteomic profile affect the predicted biological functions.

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Mangiferin: An effective agent against human malignancies.

Food Sci Nutr

October 2024

Department of Hematology/Oncology, Yousef Abdulatif Jameel Scientific Chair of Prophetic Medicine Application, Faculty of Medicine King Abdulaziz University Jeddah Saudi Arabia.

Article Synopsis
  • Mangiferin is a powerful bioactive compound mainly found in mangoes, known for its potential to prevent and treat various cancers, such as prostate, ovarian, and lung cancer.
  • It works by regulating key signaling pathways and triggering processes that lead to cancer cell death and stopping the cell cycle, which helps control cancer proliferation.
  • Although studies show promising effects against multiple cancer types, more clinical trials are needed to fully understand its benefits and establish its role in cancer prevention and treatment.
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Key Clinical Message: Moyamoya disease (MMD) is a chronic cerebrovascular disorder increasing stroke risk. This study presents a four-year-old MMD patient, discussing her multidisciplinary care plan including dental, behavioral, and medical management. It emphasizes the need for awareness among oral physicians and suggests further research due to the rising prevalence of MMD.

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Cancer is the second leading cause of death globally, surpassed only by heart disease. Moreover, bacterial infections remain a significant global health burden, contributing substantially to morbidity and mortality, especially among hospitalized patients. EGFR has emerged as a prime therapeutic target due to its pivotal role in driving uncontrolled cell growth and survival across numerous cancer types.

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Ubiquitin-specific protease-7 (USP7) is an important drug target as it regulates multiple proteins and genes (such as MDM2 and p53) with roles in cancer progression. Its inhibition can hinder the function of oncogenes, increase tumor suppression, and enhance immune response. The current study was designed to express USP7 in a prokaryotic system, followed by screening of small molecules against it using biophysical methods, primarily STD-NMR technique.

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Water is a fundamental resource, yet various contaminants increasingly threaten its quality, necessitating effective remediation strategies. Sustainable polymeric adsorbents have emerged as promising materials in adsorption-based water remediation technologies, particularly for the removal of contaminants and deactivation of water-borne pathogens. Pathogenetic water contamination, which involves the presence of harmful bacteria, viruses, and other microorganisms, poses a significant threat to public health.

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Insights into the molecular interactions between urease subunit gamma from MRSA and drugs: .

RSC Adv

September 2024

Dr Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi Karachi-75270 Pakistan

Article Synopsis
  • Antibiotic resistance in Methicillin Resistant Staphylococcus aureus (MRSA) necessitates the search for new drug targets, particularly focusing on urease subunit gamma, a key virulence factor in MRSA that helps bacteria survive under acidic conditions.
  • The study involved cloning, purifying, and testing 100 US-FDA approved drugs against urease subunit gamma using STD-NMR spectroscopy, with 15 drugs showing significant interactions.
  • The research evaluated the drugs' effects on the thermal stability of urease and their ability to inhibit urease activity, suggesting their potential as therapeutic agents against MRSA, warranting further investigation.
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The breakthrough cephalosporin cefiderocol, approved for clinical use in 2019, has activity against many Gram-negative bacteria. The catechol group of cefiderocol enables it to efficiently enter bacterial cells the iron/siderophore transport system thereby reducing resistance due to porin channel mutations and efflux pump upregulation. Limited information is reported regarding the binding of cefiderocol to its key proposed target, the transpeptidase penicillin binding protein 3 (PBP3).

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This paper presents a comprehensive study on the corrosion inhibition properties of new organic compounds, (1-benzimidazol-2-yl)methanethiol (LF) and 1-dodecyl-2-((dodecylthio)methyl)-1-benzimidazole (LF), have been examined for inhibiting of Carbon-Steel (C.S) in 1.0 M HCl.

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Alzheimer's disease (AD) is a significant global healthcare challenge, particularly in the elderly population. This neurodegenerative disorder is characterized by impaired memory and progressive decline in cognitive function. BACE1, a transmembrane protein found in neurons, oligodendrocytes, and astrocytes, exhibits varying levels across different neural subtypes.

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The stepwise, one-pot synthesis of heterobimetallic carbene gold(i) platinum(ii) complexes from readily available starting materials is presented. The protecting group free methodology is based on the graduated nucleophilicities of aliphatic and aromatic amines as linkers between both metal centers. This enables the selective, sequential installation of the metal fragments.

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Multisystemic Inflammatory Syndrome in Children (MIS-C) With COVID-19 and Kidney Involvement: Poor Outcomes in a Case Series.

Clin Pediatr (Phila)

August 2024

Pediatric Nephrology Center of Excellence and Pediatrics Department, Faculty of Medicine and King Abdulaziz University Hospital, King AbdulAziz University Jeddah, Saudi Arabia.

Multisystemic inflammatory syndrome (Mis-C) has emerged in May 2020 as a serious complication of coronavirus disease (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV2). A total of 6 children presented to tertiary care hospitals with Mis-C, of which 5 (83%) have died during hospitalization. All included patients presented with respiratory symptoms (ranged from mild to severe acute respiratory distress syndrome) and gastrointestinal symptoms.

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Novel derivatives of the 2-(quinoline-4-carbonyl)hydrazide scaffold carrying the acrylamide moiety were synthesized and tested for their cytotoxic efficacy against the breast carcinoma MCF-7 cell line. The most active members 6a, 6b and 6h revealed significant antiproliferative action with an IC value of 3.39, 5.

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Polymeric bio-composites synthesized a green approach using natural herbs have fascinating anticoagulant activity due to their eco-friendly and non-toxic behavior towards various physical and chemical actions. Herein, we introduce a simple and eco-friendly approach for the fabrication of a new hybrid type of bio-composite based on sulfated carboxymethyl cellulose (S-CMC) and leaf powder (S-CMC/NLP). First, a non-toxic sulfating agent called N(SONa) was used to modify carboxymethyl cellulose into S-CMC.

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Researchers in biomedical engineering are increasingly turning to weakly-supervised deep learning (WSDL) techniques [1] to tackle challenges in biomedical data analysis, which often involves noisy, limited, or imprecise expert annotations [2]. WSDL methods have emerged as a solution to alleviate the manual annotation burden for structured biomedical data like signals, images, and videos [3] while enabling deep neural network models to learn from larger-scale datasets at a reduced annotation cost. With the proliferation of advanced deep learning techniques such as generative adversarial networks (GANs), graph neural networks (GNNs) [4], vision transformers (ViTs) [5], and deep reinforcement learning (DRL) models [6], research endeavors are focused on solving WSDL problems and applying these techniques to various biomedical analysis tasks.

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